ESCRS - PP01.15 - Clinical Performance And Visual Quality Of A Non-Diffractive Extended Vision Intraocular Lens

Clinical Performance And Visual Quality Of A Non-Diffractive Extended Vision Intraocular Lens

Published 2022 - 40th Congress of the ESCRS

Reference: PP01.15 | Type: ESCRS 2022 - Posters | DOI: 10.82333/k6h1-bg47

Authors: Aurelio Imburgia* 1 , Antonino Pioppo 1 , Gregorio Lo Giudice 1 , Salvatore Longo 1

1Ophthalmology,ARNAS Ospedali Civico Di Cristina Benfratelli,Palermo,Italy

Purpose

To compare clinical outcomes and visual quality between one non-diffractive extended depth-of-focus (EDOF) intraocular lens (IOL) and one monofocal IOL in bilateral cataract surgery.

Setting

Unità Operativa di Oftalmologia, A.R.N.A.S. Ospedali Civico Di Cristina Benfratelli, Palermo

Methods

Ten patients (20 eyes) were evaluated after implantation of a non-diffractive EDOF IOL (Isopure 123, Physiol). Uncorrected visual acuity for far (> 4 m), intermediate (70 cm) and near (40 cm) distance, reading performance (MNread charts), photopic and mesopic contrast sensitivity, and defocus curve (from -3.00 to +2.00 D) were assessed postoperatively with a minimum follow-up of 6 months. Patient satisfaction and the incidence of dysphotopias were evaluated with the Quality of Vision (QoV) test. The biometric target was emmetropia; the micromonovision with a target of slight myopia in the non-dominant eye was not applied. The results were compared with a control group of 10 patients (20 eyes) implanted with a monofocal IOL (Clareon, Alcon).

Results

All eyes in both groups achieved uncorrected distance visual acuity (UCVA) of 0.10 logMAR or better at 6 months postoperatively. The Isopure group showed better uncorrected intermediate (UIVA) and near (UNVA) visual acuity with higher reading performance and spectacle indipendence than the Clareon group. Postoperative contrast sensitivity was within normal limits under photopic and mesopic conditions at any spatial frequencies in both groups. The Isopure group achieved better visual acuity than the Clareon group at each defocus interval. Dysphotopic phenomena were infrequent and mild in both groups and postoperative satisfaction was high in all cases. No postoperative complications were reported during the follow up.

Conclusions

The Isopure 123 is a non-diffractive EDOF IOL creating a depth of focus through the modulation of spherical aberration across the full optic. This technology, compared to diffractive EDOF IOLs, allows to reduce the incidence of dysphotopic phenomena, improving visual quality and patient satisfaction. In our experience, Isopure 123 has proven to be effective in improving visual quality with good spectacle independence from intermediate and near distance. The incidence of dysphotopic phenomena was low in all patients and the quality of vision was comparable with that of the monofocal IOL. This non-diffractive EDOF IOL offers a valid alternative for spectacle independence with high quality of vision after cataract surgery in selected patients.